Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 291100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT SUN MAR 29 2015

*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 4-9 MPH.         SW-W 10-15 MPH.
TRANSPORT WINDS               SE 4-9 MPH.         SW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON MAR 30        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          498 (FAIR).
OUTLOOK FOR MON MAR 30        396 (FAIR).

FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-7 MPH.          W 10-15 MPH.
TRANSPORT WINDS               W 3-7 MPH.          SW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR MON MAR 30        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          532 (FAIR).
OUTLOOK FOR MON MAR 30        325 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-4 MPH.         W 3-7 MPH.
TRANSPORT WINDS               NW 0-4 MPH.         SW 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR MON MAR 30        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          528 (FAIR).
OUTLOOK FOR MON MAR 30        313 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      526 (FAIR)
ELLENSBURG    520 (FAIR)
GOLDENDALE    334 (FAIR)
TRI-CITIES    738 (GOOD)
WALLA WALLA   345 (FAIR)
YAKIMA        334 (FAIR)
BEND          278 (POOR)
PRINEVILLE    325 (FAIR)
ENTERPRISE    639 (GOOD)
HERMISTON     428 (FAIR)
JOHN DAY      466 (FAIR)
LA GRANDE     542 (FAIR)
MADRAS        357 (FAIR)
MEACHAM       376 (FAIR)
PENDLETON     222 (POOR)
REDMOND       267 (POOR)
SENECA        409 (FAIR)
THE DALLES    143 (POOR)

METEOROLOGICAL INFORMATION PROVIDED IN THIS PRODUCT REPRESENTS ONLY
SOME OF THE FACTORS USED IN BURN DECISIONS.  BURN DECISIONS ARE
OUTSIDE THE PURVIEW OF THE NATIONAL WEATHER SERVICE.

THE VENTILATION INDEX IS A TOOL TO ASSIST SMOKE MANAGEMENT
AGENCIES IN DETERMINING BURN OR NO BURN DECISIONS.  A VENTILATION
INDEX GRAPHIC IS ON THE PENDLETON WEBSITE AT THE FOLLOWING ADDRESS:
HTTP://WWW.WRH.NOAA.GOV/PDT/FORECAST/FWXGRAPHICALVENTILATION.PHP?WFO=PDT

IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.

$$









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